I'm building Scaredy Cat, a 3D puzzle platformer where you play as a cat trying to get out of a house that's coming apart. You have no attacks and for the prereq: the only thing that breaks anything is how fast you're going. And as cat owners know, the thing that makes you fastest is being scared. So up your fear by interacting with super scary objects to be able to hit the door hard enough and escape to the next level.
Thanks Neonfire for the discord tip, I'll be posting the rest there. 26 hours to go!